Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Merced / Castle Air Force Base (KMER)

Lat: 37.36667°NLon: 120.56667°WElev: 187.0ft.

Mostly Cloudy

N/A

Humidity	NA
Wind Speed	SSE 17 MPH
Barometer	NA
Dewpoint	N/A
Visibility	8.00 mi
Last update	NA

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

5 Miles SE Denair CA

Flood Watch December 24, 07:02pm until December 26, 04:00pm

Wind Advisory December 24, 07:02pm until December 25, 04:00pm

Click here for hazard details and duration

Flood Watch

Wind Advisory

Flood Watch December 24, 07:02pm until December 26, 04:00pm
Wind Advisory December 24, 07:02pm until December 25, 04:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 54 °F
Showers and
Breezy
Christmas Day
High: 58 °F
Showers and
Breezy
Thursday Night
Low: 51 °F
Showers
Friday
High: 54 °F
Showers
Friday Night
Low: 44 °F
Rain Likely
then Chance
Rain
Saturday
High: 50 °F
Partly Sunny
Saturday Night
Low: 38 °F
Partly Cloudy
Sunday
High: 48 °F
Mostly Sunny

Detailed Forecast

Tonight

Showers and possibly a thunderstorm before 10pm, then rain between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 54. Breezy, with a southeast wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Christmas Day

Showers and possibly a thunderstorm. High near 58. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Rain before 10pm, then showers and possibly a thunderstorm after 10pm. Low around 51. South southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

Rain before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 54. South southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 44. Southeast wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Saturday

Partly sunny, with a high near 50. Northwest wind around 5 mph.

Saturday Night

Partly cloudy, with a low around 38. Northwest wind around 5 mph.

Sunday

Mostly sunny, with a high near 48. North northwest wind around 5 mph.

Sunday Night

Mostly clear, with a low around 36. Calm wind.

Monday

Partly sunny, with a high near 47. Calm wind becoming north northwest around 5 mph.

Monday Night

Partly cloudy, with a low around 37. Calm wind.